This inventor holds 1 USPTO granted patent and 3 published patent applications. Top assignees: Central South University, Sf Diamond Co., Ltd.. Active years: 2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 134 
1 out of 20 Years Active: 2025
Title: Changjian Geng: Innovator in Polycrystalline Diamond Technology
Introduction
Changjian Geng is a notable inventor based in Zhengzhou, China. He has made significant contributions to the field of materials science, particularly in the development of polycrystalline diamond composite sheets. His innovative work has led to the filing of a patent that showcases his expertise and creativity in this specialized area.
Latest Patents
Changjian Geng holds a patent for a "Polycrystalline diamond composite sheet having continuous gradient transition layer and preparation method thereof." This invention discloses a polycrystalline diamond composite sheet that features a continuous gradient transition layer and a 3D printing preparation method. The composite sheet consists of a polycrystalline diamond layer, a continuous gradient transition layer, and a cemented carbide substrate. The continuous gradient transition layer is composed of diamond and cemented carbide, with the content of cemented carbide decreasing from 100% to 0% and the content of diamond increasing from 0% to 100% as one moves from the substrate to the diamond layer. This innovative design eliminates the sudden change interface of materials within the diamond composite sheet, enhancing its structural integrity.
Career Highlights
Throughout his career, Changjian Geng has worked with esteemed institutions and companies, including Central South University and Sf Diamond Co., Ltd. His work has been instrumental in advancing the applications of diamond materials in various industries.
Collaborations
Changjian has collaborated with notable colleagues such as Shaohe Zhang and Xiangwang Kong. Their combined expertise has contributed to the successful development of innovative technologies in the field of materials science.
Conclusion
Changjian Geng's contributions to the field of polycrystalline diamond technology exemplify his innovative spirit and dedication to advancing material science. His patent and collaborative efforts highlight the importance of continuous research and development in this specialized area.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile